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Question 250 - SCS-C01 discussion

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You have a 2 tier application hosted in AWS. It consists of a web server and database server (SQL Server) hosted on separate EC2 Instances. You are devising the security groups for these EC2 Instances. The Web tier needs to be accessed by users across the Internet. You have created a web security group(wg-123) and database security group(db-345). Which combination of the following security group rules will allow the application to be secure and functional. Choose 2 answers from the options given below.

Please select:

A.
wg-123 -Allow ports 80 and 443 from 0.0.0.0/0
Answers
A.
wg-123 -Allow ports 80 and 443 from 0.0.0.0/0
B.
db-345 - Allow port 1433 from wg-123
Answers
B.
db-345 - Allow port 1433 from wg-123
C.
wg-123 - Allow port 1433 from wg-123
Answers
C.
wg-123 - Allow port 1433 from wg-123
D.
db-345 -Allow ports 1433 from 0.0.0.0/0
Answers
D.
db-345 -Allow ports 1433 from 0.0.0.0/0
Suggested answer: A, B

Explanation:

The Web security groups should allow access for ports 80 and 443 for HTTP and HTTPS traffic to allusers from the internet. The database security group should just allow access from the web security group from port 1433.

Option C is invalid because this is not a valid configuration

Option D is invalid because database security should not be allowed on the internet For more information on Security Groups please visit the below URL:

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/usins-network-security.htmllThe correct answers are: wg-123 - Allow ports 80 and 443 from 0.0.0.0/0, db-345 - Allow port 1433from wg-123Submit your Feedback/Queries to our Experts

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asked 16/09/2024
Arkadius Thoma
49 questions
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